Fisher 1236-X2 warranty Pinpointing, No-Motionpinpoint Mode, Discrimination Points

PINPOINTING

The pinpoint mode requires no tuning and no motion to precisely locate the target. With the Pinpoint push-button depressed, the 1236-X2 is in an all-metal mode, meaning that any discrimination setting you might have selected will no longer apply. The VCO (Voltage Controlled Oscillator) circuitry indicates the presence of a target by increasing both the volume and frequency of the audio output. By depressing the Pinpoint push-button, precise target location is a snap.

NO-MOTION PINPOINT MODE

1.Once the presence of a buried target is indicated by the “beep-beep” simply place the coil lightly on the ground, away from the target area. Push the PINPOINT button and hold. (At maximum sensitivity you may hear a faint tone which will disappear as soon as the coil is raised.)

2.Raise the coil 1/2 inch or so and move it side to side across the target areas a few times.

3.Stop the search coil over the spot where you receive the loudest response.

4.Now move the coil slowly forward and back a couple of times, again stopping over the strongest response.

5.Move the search coil side to side one more time and stop over the strongest signal once again. Your target should be directly below the “Hot Spot” of the search coil.

6.For quick and accurate pinpointing of strong signals, place the coil on the ground very close to the approximate target area and push and hold the PINPOINT button. You have now “tuned out” most of the target signal so that when you raise the coil for pinpointing you will only receive a response directly over, or very nearly over, the target.

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DISCRIMINATION POINTS

Figure 6. Typical 1236-X2 audio reponses (with silencer off) for 2-inch deep targets with search coil sweeping 1 to 2 inches above ground

9.Some objects will cause sharp static or “ticking” when rejected. This is a perfectly normal response, with the SILENCER switched OFF. When the SILENCER is switched on, these “ticking” sounds are eliminated.

10.Large pieces of trash such as beer cans or jar lids may sound like a good target no matter what you do. With a little practice, however, you will be able to tell the difference between a large target and a small coin sized object.

11.The diagram above shows some different target responses you may expect at different levels of discrimination. Note that as you increase the discrimination level, you progressively eliminate more targets, including some good ones, such as nickels and gold rings.

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1236x2 manual-8704810.indd 13 6/9/06 10:08:59 AM